user
Task: Generate the main points for a presentation about the impact of air pollution in cities.


assistant
1. Definition of air pollution and its impacts on city populations. 
2. Health and environmental impacts of air pollution in urban areas.
3. Sources and causes of air pollution in cities.
4. Solutions and policies addressing air pollution in cities.
5. Best practices for reducing air pollution in cities.
6. Case studies of successful air pollution mitigation programmes in cities.